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Related Experiment Videos

[Hemiballismus in cerebral infarction].

J Hordnes1, G Moen, O B Tysnes

  • 1Nevrologisk avdeling, Haukeland Sykehus 5021 Bergen. juda@haukeland.no

Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
|October 24, 2001
PubMed
Summary

Hemiballismus can result from lesions outside the subthalamic nucleus, challenging traditional views. Recovery is often spontaneous, irrespective of lesion location, offering a positive prognosis for patients.

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Area of Science:

  • Neurology
  • Neuroscience
  • Stroke Research

Context:

  • Hemiballismus is traditionally associated with subthalamic nucleus lesions.
  • Ischaemic stroke is a potential cause of hemiballismus.
  • Understanding basal ganglia-thalamocortical circuits is crucial for explaining hemiballismus.

Purpose:

  • To investigate the anatomical correlates of hemiballismus in patients with ischaemic stroke.
  • To evaluate the treatment and prognosis of hemiballismus.

Summary:

  • This study examined six patients with hemiballismus following ischaemic stroke.
  • Cerebral MRI revealed that four patients had lesions outside the subthalamic nucleus.
  • Standard treatments like neuroleptics and benzodiazepines were effective.

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  • Four patients experienced spontaneous recovery within nine months.

    • Impact:

    • Challenges the traditional view linking hemiballismus solely to subthalamic nucleus lesions.
    • Suggests lesion location does not influence prognosis.
    • Highlights the potential for spontaneous recovery in hemiballismus.
    • Informs clinical understanding and management of hemiballismus post-stroke.